Typically, interacting with other hubbers by reading and commenting on their hubs and getting to know others in the forums. Generally, that is how we build relations and support each other.
It can take some time, yet just get yourself out there and get to know the community. Once, you do, you and others may even decide to link your hubs to generate more views. Have fun. Hope this helped a bit. :)
Edit: I just visited your profile and noticed that you enjoy writing sci-fi and flash fiction. You can seek other writers in this category by looking to the top left of the hub tool bar..
Click on TOPICS (upper left)
Click on books and writing
Click to find writers in your genre.
Also, you can take some time going through the topics and "following" those topics of interest. Then you will see all the newly published hubs as they come out to enjoy and introduse yourself. :)